单词	polyacrylonitrile
释义	polyacrylonitrile noun poly·​ac·​ry·​lo·​ni·​trile ˌpä-lē-ˌa-krə-lō-ˈnī-trəl  -ˌtrēl : a polymer of acrylonitrile used often as fibers Word History First Known Use 1935, in the meaning defined above
随便看	contend (with) contend with contended contended (with) contended with contendents contender contenders contending contending (with) contending with contendings contends contends (with) contends with content content analysis content oneself with content psychology content subject content word contentation contented contentedly contentedness

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